Schultz, Leonard G. 1926-
Mineralogy and stratigraphy of the Lower part of the Pierre Shale, South Dakota and Nebraska / by Leonard G. Schultz. -- Washington : United States Government Printing Office, 1965 - 19 p. -- (Geological Survey Professional Paper ; 392-B).
Dakota del Sur
Estratigrafía
Mineralogía
Nebraska
551.7(782/783)
Mineralogy and stratigraphy of the Lower part of the Pierre Shale, South Dakota and Nebraska / by Leonard G. Schultz. -- Washington : United States Government Printing Office, 1965 - 19 p. -- (Geological Survey Professional Paper ; 392-B).
Dakota del Sur
Estratigrafía
Mineralogía
Nebraska
551.7(782/783)